Additives for Polymers
MATERIALS BASF introduces advanced silver pigment for plastics coloration BASF has launched a new pigment Variocrom® Magic Silver K 1000 which it claims offers far superior performance to conventional aluminium pigments used in plastics coloration. According to the company, its new metallic pigment has the highest brilliance (‘chroma’) of all aluminium pigments currently available. Variocrom Magic Silver K 1000 also has a distinct light/dark flop without the loss of chroma (‘greying’) that is typical for traditional aluminium pigments in plastics when moving from top to angle view, BASF says. Unlike competitive products, Variocrom Magic Silver K 1000 is a pure powder pigment rather than a preparation, BASF says, and can be used in any processing technique. The company claims that it also shows less flow lines in injection moulding than regular aluminium pigments. The new pigment can be handled safely, with no tendency to self-ignite. It can be processed up to 350 °C and is approved for food-contact applications. The intended application fields are high-end packaging, film and exterior automotive parts using in-mould coloration processes. Contact: BASF AG, Carl-Bosch-Straße 38, D67065 Ludwigshafen, Germany; tel: +49-62160-0; fax: +49-621-60-20721; e-mail: [email protected]
; URL: www.basf.com/pigment
Holland’s additives mask recycled appearance in PET Holland Colours has recently developed a new concept called TintMask to extend the use of recycled post-consumer polyethylene terephthalate (PET) by improving its colour and appearance. Bottles, sheets and fibres made of recycled PET usually have a yellow/green tint or contain coloured particles, which stops some manufacturers choosing them for certain applications. Holland’s TintMask technology uses the principle of complementary colours to neutralize the tint and give the material a more attractive appearance. 2
Coloured additives are available in liquid (HolcoPET) and solid micro-bead (Holcobatch) formats, and are dosed directly onto the extruder in melt compounding processes, or onto the preform moulder, sheet or fibre extruder. Dosing levels range between 0.01% and 0.2%, Holland says. The products have the relevant EU and FDA regulatory compliance for typical PET use. According to the company, the additives increase the value of recycled PET to end-users and impart no known side-effects to the production process. Colour is said to be consistent from one batch to the next, with no migration or sublimation in high-vacuum processes. Colour adjustments are made on-site at the customers’ facility. In other news, the company recently reported results for the first half of its 2003/04 fiscal year ended 30 September 2003. Turnover for the six months was 1.3 million, down 19% from the strong first half of 2002/03. Net profit was 1.26 million, down from 1.55 million the previous year, though at constant exchange rates the profit would have been at least equal to last year’s, the company says. There were continued declines in demand from West European and North American markets because of the recession, but good turnover growth in Holland’s relatively new markets in China, Mexico and East Europe. The company expects seasonally lower results for the second half year. Contact: Holland Colours NV, PO Box 720, 7300 AS Apeldoorn, The Netherlands; tel: +31-55-3663143; fax: +31-55-366-2981; e-mail: [email protected]
; URL: www.hollandcolours.com
Degussa launches three matting agents for coatings Degussa Corp’s Advanced Fillers & Pigments business unit has extended its Acematt® line of matting agents with the addition of Acematt HK 440. In addition, the company has developed two innovative ‘soft touch’ matting agents for coatings that serve the automotive and plastics industries, among others. Acematt HK 440 is intended to complement Degussa’s well-established Acematt HK 450 and HK 460 product range, the company says. It is an untreated, highly efficient matting agent designed to meet market needs for matte
surfaces in the coatings industry. Specifically developed for applications requiring low gloss to sheen ratios (60°/85°), Acematt HK 440 is said to provide an excellent surface appearance and good viscosity stability. EXP 3200-1 and EXP 3300-1 are innovative matting agent products designed to impart a soft, velvety touch, Degussa says. Formulated in coatings for automotives, electronics and plastics, the company says that EXP 3200-1 and EXP 3300-1 can provide a wide spectrum of tactile properties, from silky to velvety to almost rubber-like. Degussa Corp, located in Parsippany, NJ, is the North American subsidiary of Germany speciality chemicals manufacturer Degussa AG. The company owns and operates production facilities, R&D and applied technology centres throughout NAFTA. Contact: Degussa Corp, 379 Interpace Parkway, PO Box 677, Parsippany, NJ 070540677, USA; tel: +1-973-541-8000; fax: +1973-541-8013; URL: www.degussa-nafta.com
Amfine UV absorber gains FDA food-contact approval Amfine Chemical Corp’s LA-31RG high molecular weight UV absorber has been regulated by the FDA as a food contact substance for use in polyethylene terephthalate (PET) polymers. The food contact substance (FCS) is intended to be used as a stabilizer at levels not to exceed 0.20 wt% of PET (complying with 177.1630). The stabilizer has been approved for use in contact with a range of aqueous, acidic, alcoholic and fatty food types. Contact: Amfine Chemical Corp, 6 Pearl Court, Allendale, NJ 07401, USA; tel: +1-201-8180035; fax: +1-201-818-8701; e-mail: [email protected]
; URL: www.amfine.com
Additives for Polymers
division has announced plans to build a colorants plant and a manufacturing facility for producing coating polyesters at the Shanghai site of Degussa Chemicals (Shanghai) Co Ltd. The company says the new facilities will be dedicated to serving Coatings & Colorants customers in the rapidly expanding Chinese market. The new plants will provide high-quality product solutions for Chinese paint and coatings manufacturers. The investment in these new state-of-theart facilities is an indication of Degussa Coatings & Colorants’ belief in the dynamic future of the Chinese market, as well as its commitment to supporting its clients on a global basis. In other news from the division, the Advanced Fillers & Pigments unit has acquired a majority (51%) share in Egesil, its Turkish silica joint venture, effective from 1 January 2004. Egesil, which is located in Adapazari near Izmit, produces high-quality silica fillers for tyres, mechanical rubber goods and dispersion paints. The business was established about two years ago by the proprietors of Ege Kimya AS, a 45year-old family-owned chemical company, with Degussa initially taking a 25% share but with the stated intention of increasing its share in the future. Initially the joint venture had a capacity of 8000 tonnes/year of silica, which has since been increased to the current level of 15 000 tonnes per year. The expansion also provided the opportunity for a simultaneous launch of a new production technology. Degussa Management Board member Dr Carl Voigt says that Degussa’s “increased participation will achieve a second important step in the enhancement of our market position in precipitated silicas in south-eastern Europe and the near East”.
Degussa constructs new plants in China, invests in Turkey
According to analysts, there will be a significant rise in the demand for tyre silicas over the next few years. With a total of 31 production sites in 18 countries, and application technology support sites in Europe, America and Asia, Degussa is the worldwide market leader in precipitated silicas and rubber silanes. Precipitated silicas and silicates are also used as pigments in the paints and colorants industry, and abrasives in toothpaste.
The Coatings & Colorants business unit of Degussa AG’s Coatings & Advanced Fillers
In the first nine months of 2003, Degussa reported sales of 8.6 billion, down 3% compared with